Finding the Fourth Proportional to 3,726.81, 5,141.72 and 2,664.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,726.81 : 5,141.72 = 2,664.69 : x
2. Step 2: Convert to fraction form
   3,726.81/5,141.72 = 2,664.69/x
3. Step 3: Cross multiply
   3,726.81x = 5,141.72 × 2,664.69
4. Step 4: Simplify right side
   3,726.81x = 13,701,076.54
5. Step 5: Solve for x
   x = 13,701,076.54/3,726.81
6. Step 6: Final answer
   x = 3,676.35